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(No Model.)

I r W. HOOHHAUSEN.

HANGER BOARD FOR ELECTRIC LAMPS.

Patented Feb. 26,1884,

UNITED STATES ATENT FFICEE.

WILLIAM HOOHHAUSEN, OF NEAV YORK, N. Y.

HANGER-BOARD FOR ELECTRIC LAMPS.

SPECIFICATION forming part of Letters Patent No.. 294,045, dated February 26, 1884.

Application filed August 6. 1883. (No model.)

To all whom it may concern:

Be it known that I, WM. HOCHHAUSEN, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Hanger-Boards for Electric Lamps, of which the following is a specification.

My invention relates to apparatus for suspending and forming the electrical connections to electric lamps; and its object is to provide a simple and effective device whereby the lamp may be securely supported, and whereby, also, the main or principal circuit may be automatically preserved when the lamp is lowered and its connection with the .main circuit broken. I

My invention consists in certain novel combinations of devices and improvements in the details of construction, the nature of which will be described in connection with the accompanying drawings, and willbe specified in the claims.

In the accompanying drawings, Figure l is a verticalsection, on the line 1 1 of Fig. 3, through the hanger-board; and Fig. 2 is a side View and partial section taken at right angles to Fig. 1. Fig. 3 is a plan view of the hangerboard, looking upward.

I have herein shown and described my invention' as applied to an electric-arc lamp having two sets of carbons. The protectingtubes for the upper-carbon carriers are shown in Fig. 2 at B B A indicatesthe top plate or cover for the lamp mechanism, and I I the ordinary insulated conductors by which current is conveyed to the lamp. The insulation is removed from the upper portion of these conductors,as shown in Fig. 2, so that they may form contact-plugs adapted for insertion between the free end of a contact-spring and the surface of a plate against which said spring tends to bear.

0 indicates a blockof some suitable insulating material-such as woodhaving upon its bottom a circular groove, in which, at points corresponding to the position of conductors I P, are fixed two clamping posts or blocks, K K adapted to receive the insulated line-conductors, and to hold them securely by means of two set-screws. (Shown in Fig. l.) The block Ois provided with longitudinal perforations J in line with the sockets of the binding-posts,

to allow the line-wire to be inserted, and to also protect the bared ends of the line from accidental contact with foreign conductors. The block 0 is also provided with openings or perforations N, by which it may be firmly secured to a ceiling or other support.

Attached to or formed upon the bindingposts K, and lying in the circular groove upon the bottom of the block 0, are two curved plates,R and M, resting against the periphery of a central boss or projection upon the bottom of the block 0, and a spring, L, between which and the contact-piece upon the end of plate R the end of the conductor I orI maybe forced when the lamp is raised into position, thus completing a connection with the line. The extreme'end of spring L normally tends to make connection with a curved plate, M similar to M, and connected with the binding-post K from which latter project the additional plate R and a spring, L Between the end of the latter plate and spring L the end of the other lamp-conductor may be inserted, so as to form connection with the binding-post K The extreme end of the spring L tends normally to make contact with the curved plate M.

The line-conductors being clamped in the two binding-posts, it will be readily seen that if the lamp be lowered, so as to withdraw the conductors I I from between the springs and the curved plates, the spring for each binding-post will, at its extremity, make contact with a curved plate connected with the other binding-post, thus completing the connection directly between said posts and preserving the general line-circuit. Vhen the lamp is raised, the ends of the conductors I I are forced between the springs and the plates R R, and

the extremities of the springs will be lifted out of connection with the plates M M thus breaking the directconnection for the lineing at their upper ends the hooks F 11, which spring apart and catch upon the upper surface of the block 0 when the tubes B B are raised to a sufficient distance through the central opening, 13, provided for them in the block 0.

H indicates a metallic plate clamped to the top of the block 0, and cut away, as shown in Fig. 1, to form depressions, into which the ends of the hooks F enter, thus securely holding the latter until they are thrown back by pressure applied to the releasing-arms F At G is indicated the spring which tends to force the hooks F F outward when they have passed through the opening B The spring G connects the extensions 1 of levers F.

In the drawings the lamp is shown as suspended from the block (3 by the catch-levers. To lower the lamp, it is merely necessary to apply upward pressure to the arms F thus drawing the upper ends of levers F inward,

and at the same time lifting the parts so that the hooks may readly leave the depressions formed by the openings in the plate H.

I have. herein shown my invention as applied to a double-carbon lamp; but it will be readily understood that the same may be also applied to a single-carbon lamp.

\Vhat I claim as my invention is l. The combination, with the carrier-tube for an electric-arc lamp, of a collar clamped upon the same, and a spring-catch supported by said collar and adapted to engage with the hanger board or support from which the lamp is to be suspended. 2. The combination of the hanger-board perforated for the carrier tube, a catch or catches supported from said tube, for engaging with said board, and spring-switches upon the board adapted to receive theterminals of conductors leading into the lamp.

3. In a double electric lamp, the combination, with the collars D D, clamped to the carrier-tubes, and having eyes or rings that receive and support the lamp-conductors I 1 of an intermediate connecting-piece, and an automatic catch pivoted from the latter, as and i V for the purpose described.

of the binding-posts seated in said groove, and a connecting spring and plate extending from each of said posts, and adapted to receive the terminals of conductors rising from the lamp. p

6. The combination, with each of the two binding posts or blocks seated in the bottom of the hanger-board, of a horizontally-proj ecting spring and two horizontally-proj ecting plates, one of which on each of said posts forms, in connection with the spring, a connecting-clip for grasping the terminal of a conductor of the lamp, while the other plate forms an anvil or stop for the free end of the spring con nected with the other post when the lamp is lowered.

7. In a hanger-board for an electric lamp, the combination of two binding posts or blocks, K K curved plates and springs extending from said blocks and lying in acircular groove in the bottom of the block, and conductors I I rising from the lamp-casing.

8. The combination, with the hanger-board G, perforated at its center, of a binding-post, K, on the bottom of said board, horizontallycurved plates M R, curved around a central boss or projection, and spring I, between which and plate R the end of a conductor on the lamp may be forced, and a second post provided with a similar spring and plates,one of which latter forms a contact-stop for the free end of the spring connected with the firstnamed binding-post when the lamp is lowered.

9. The combination, with theblock C of insula-ting material, perforated at its center, of the binding posts or blocks seated in a circu lar groove on the bottom of the board, and the longitudinal openings J, for the insulated linewires.

10. The combination, with the hanger-board C, perforated at its center, and provided with means for completing the circuit to the lamp when thelatter is raised to a sufficient distance, of the two catch-levers F F, carried by the lamp, the connecting-spring, and the releasing horizontal arms F F, as and for the purpose described.

Signed at New York, in the county of New York and State of New York.

VILLIAM HOGHHAUSEN. 

